Improvement in gas-washing machinery



T, K. LEES.

GasWashing Machinery. N0.168,906.

Patented Ocft. 19,1875.-

UNITED STATES THOMAS KJLEES, or BROOK'LYN, NEWYORK.

IMPROVEMEN IN GAS-WASHING MACHINERV.

Specification forming part of Letters Patent No. 168,906, dated October 19, 1875 application filed September 15, 187 5.

To coll whom muy concern:

Be it known that I, THOMAS K. LEES, of Brooklyn, Kings county, in the State of New York, have invented certain new and useful Improvements relating to Scrubbers or Washers for Gas, of which the following is a specification:

It is desirable, in ridding the gas of its ammonia, to present a proper amount of watersurface, or of a wetted surface, to every particle of the gas, and to do this under conditions of great uniformity. Myimproved apparatus is intended for this purpose, and afl'ords a great amount of wetted surface, with facilities for distributing Water uniformly thereupou under conditions which allow the moparts in both the figures.

A is a gas-tight casing of cast-iron, provided with suitable apertures, covered by bonuets A and A to allow access to the interior.

the bottom, and to be discharged through a nozzle,A, near the top. In rising through the casing A the gas is scrubbed or washed by its contact with the wet surface, and the water trickling down therefrom conveys away the ammouia. Water is admitted from a stop cock (not represented) through a trapped pipe or seal,- A at the top, and is diseharged through a suitable trapped passage or seal, A, near the bottom. B is a vertical shaft, mounted in the axial line of the casingA, and revolved by gearing turned slowly by connections from a steamengine or other suitable power. Hubs b, fixed at intervals thereon, carry circular plates b, of sheet-iron or other suitable material, which are both perforated and corrugated. Corrugated disks are preferable, though they may be made plain or in radial curves. The peripheries of the disks b Gas is allowed to enter through a nozzle, A near run so near the interior of the casing A that the small quantity of gas flowing between will be about as efl'ectually washed as that which passes up through the perforations. Internal flan gos or shelves A", a little above each plate b, form support-s for gratings C, which are preferably bars of soft wood, rough Sawed, and of little thickness and great depth, as shown. They may be armed with nails or other pro jections, (not represented,) to aid in holding each at a small distance from its neighbor on each side.

It is important to the highest success that the spaces C between the grate-bars C be ap proximately uniform, so that the gas, in moving up through these spaces, shall be unifor1nly scrubbed.

When the apparatus is in use, a current of gas moves upward, through it, and a sinall quantity of water moves gradually in the 0pposite direction over all the surfaces. The constant moderate rotation of the shaftB and its attached plates b receive the water from the pipe A 011 al] parts of their upper surface, and, while the perforations distribute it, the corrugations aid to make the distribution practically uniform through every part of its revolution. The water falls iu a shower upon the grating Gr immediately below, and, keeping all of its extended surface thoroughly wetted, falls upon the next plate b, and so on to the bottom of the apparatus.

The rotation of the plates should not be so great as to throw the water with much force toward the periphery by centritugal force. It is only desirable to keep the inner surface of the casing A wetted to about the same extent as the other parts.

The shaft B is stepped in a support near the bottom, which rests on the upturned end of the gas-'inductiou pipeA and the upper end turns in a stuffing-box, as represented. The power required is insignificant. The entire apparatus occupies but little room, and the action is unusually efficient and unifbrm.

The corrugations in the disks b not only aid in stiflening the disks, but also aid in dis tributing the water evenly, as without them the water is liable to move too freely along the surface, and be all thrown to the periphcry, or, in case of the leastinclination of the ,but I prefer concentrie corrugations.

corrugati0ns or grooves may be of service to disk, all-toone side. Plane disks may serve. Radial prevent the water from flowing 1300 much to either side under any eircumstances.

I claim as my invention- 1. The series of perforated disks b, m0unt ed on the shaft B, and revolving within a casing, A, in combination with gas-passages A A and water-passages A A as and for the purposes herein specified.

2. The gratings G, in combinatqn with the casing A, water-distributing revolving plates b, and with gas-connections A A and waterc0nnectons A A as and for the purposes hrein specified.

In testimony whereof I have hereunto "set my hand.

THOMAS 'K. LEES. Witnesses:

PHILLIPS ABBOTT, H. CLAY SMITH. 

